Heating-drum.



PATENTED JUNE 30, 1903.

A. .0. SBLLEGK. HEATING' DRUM. APPLICATION FILED HA3. 10, 1902.

N0 MODEL.

lhvieu MM 2 JM MIKE Rab, J

UNITED STATES Fatent'ed Tune 30, 1903;

ALLEN O. SELLECK, OF CHICAGO, ILLI NOIS.

HEATING-DRUM;

SPECIFICATION forming part of Letters Patent No. 732,454, dated June 36,1903

Application filed March 10, 1902. Serial No. 97,509. (No model.)

To all whom it may concern:

Be it known that I, ALLEN O. SnLLEcK, of

Chicago, in the county of Cook and State of.

ney and located generally in a room above that in which the stove or heater is located, but which can be used in direct connection with the exit-flue of the stove or heater and in the room inwhich the stove or heater is located. Drums of this character operate to draw the cold air from the lower portion of the room, usually close to the floor, and after passing the cold air through the drum discharging the air in a heated condition back into the room, thus obtaining the benefit of heated air in addition to the heat of the stove and drum for warming purposes.

The objects of the present invention are to improve the construction and operation of heating-drums for use with a stove or other heater as to the drawing of the cold air into the drum, passing it through the drum, and discharging it from the drum, so that when discharged it will be in a heated condition; to furnish a clear passage for the air into the drum at the lower end and out of the'drum at the upper end and have the air in its passage from the lower end to the upper end of the drum subjected to heat from the escaping products of combustion passing through the fines of the drum; to enable the drum to be located at some distance above the floor without materially changing or afiecting the operation of the drum in passing air from the lower end thereof through the drum to be discharged at the upper end with a clear pas. sage from end to end of the drum; to improve the heads or supports at the lower end and at the upper end of the drum for carrying the heat fines or tubes through which the escaping heat and products of combustion pass, and to improve generally the construction and arrangement of the parts forming the heating-drums as a whole.

In the drawings, Figure l is an elevation of the drum in its preferred form of construction for use setting on the floor or othersupport at a low elevation; Fig. 2, a central vertical section of the form of drum shown in Fig. 1; Fig. 3, an elevation of the radiator or heat-imparting member ofthe drum; Fig. 4, atop or plan view of the drum of Figs. 1

and 2; Fig. 5, a cross-section through the drum taken on a line above the lower head or support for the heat-conducting fines or tubes looking down; Fig. 6, an edge view of one of the connecting and supporting plates for the heat-conducting fines or tubes; and Fig. 7, an elevation with the upper portion of the drum broken off, showing a detachable plate or head for use when the drum is located above the floor or in a high plane.

The drum has an outer shell or casing A, preferably made of sheet-iron or other sheet metal and of a cylindrical shape in cross-section and of any diameter and length required. The shell or casing A at its lower end, as shown in Figs. 1 and 2, is supported on legs A, attached to the shell or casing by bolts or rivets Ct or in any other suitable manner. The shell or casing is open from its lower end to its upper end in the preferred form of construction for use, as shown in Fig. 2, so that cold air will be drawn into the lower end of the drum and pass freely up through the drum and be discharged at the upper end of the drum, thus furnishing a clear opening at the bottom for the admission of air and a clear opening at the top for the discharge of air.

The heater or radiator, located within the interior of the drum and supported therein, is constructed with a head or support at the lower end of the drum comprising a funnelshaped section B and a plate-section 0, both sections preferably made of cast metahthough other metal could be used. The funnel-shaped section B of the head or support has at its extreme lower end an annular rim or wall 19, forming a collar for attachment of the drum in position on the exit-flue of a stove or to the end of a stovepipe length, according as to how the drum as a whole is to be located and used, and the side wall I) of the funnelshaped section of the head or support diverges from the collar rim or wall and is of a fluted formation, having a series of circumferential depressions 19 which at the extreme outer end form approximately half-circles,

and circumferentially around the outer edge are of a less diameter than the interior di of the section B of the head or support is a straight rim or flange b conforming in shape to the fluted formation of the outer end of the section. The plate 0, forming the other section of the head or support, has its circum ferential edge corresponding to the fluted formation of the outer end of the section B, and this plate-section O is entered into the rim or flange b of the section B and rests on a shoulder b on the inner face of the section B adjacent to the retaining rim or flange b so that when the two sections of the head or support are together a close fit and a tight joint are formed between the periphery of the plate-section and the circumferential flange or rim of the funnel-shaped section, so as to prevent the escape of smoke and products of combustion around the edge of the plate-section. The plate-section has a series of rims or flanges 0 adjacent to its outer edge, each flange or rim encircling an opening 0, and at the center of the plate-section is a flange or rim 0 encircling a central opening or hole a through the plate, and the openings or holes 0 and c are of a less diameter than the interior diameter of the encircling flanges or rims, leaving a ledge around each hole or opening inwardly extending from the flange or rim, as shown in Fig. 2.

The heater at its upper end has a head or support consisting of a funnel-shaped section D and a plate-section E, which sections correspond in formation to the sections for the lower head or support. The section D at its extreme upper end has a flange or rim d, forming a collar for the attachment thereto of a stovepipe length, and from this flange or rim a downwardly-diverging wall (1 extends, which wall is of a fluted formation, having around its body depressions d which at the extreme outer end are approximately of a half-circleformation. 'lheextremeouterend of the section D has a peripheral flange (P, which follows the flutes of the wall d, wit-ha shoulder on the inner face of the wall cl, adjacent. to the peripheral rim or flange. The plate-section of the upper head or support has a peripheral edge corresponding to the fluted formation of the outer end of the funnel-shaped section D, and this peripheral edge of the plate E when the sections are together fits closely within the lower end of the funnel-shaped section, resting on the shoulder dand makinga tight fit and a close joint between the two sections around the edge of the plate-section against the escape of smoke and the products of combustion. The platesection of the support has adjacent to its outer edge a series of depending rims or flanges e, each rim or flange encircling an opening e, and at the center of the plate is a rim or flange e which instead of an opening in the plate encircled by the flange or plate has a small hole a furnishing a vent-opening only into the chamber of the head or support. The openings 9 in the plate-section E ameter of the encircling rims or flanges, so as to leave a shoulder or rest (2, inwardly projecting from each encircling rim or flange.

The two heads or supports are of like formation so far as regards their general outline and arrangement, differing, however, in that the plate-section ot' the lower head or support has a large central opening, while the platesection of the upper head or support has a central vent-hole of small diameter. The lower head orsupport of the radiator or heater in the arrangement shown is located within the shell or casing of the drum for its lower end to be above the lower end of the shell or casing, and the upper head or support of the radiator or heater is located for its attaching collar rim or flange to project above the upper end of the shell or casing, and the heater is set in the shell or casing so as to have an equidistant space circumferentially around between the shell or casing and the heads or supports, leaving a clear space between the shell or casing and the heads or supports at the bottom and top for the air to pass upwardly through the drum within the shell or casing. The heaterin the construction shown is completed by a series of tubes F, one tube for each of the outer flanges or rims of the plate-sections of the heads or supports and a central tube for the center flanges or rims of the plate-sections of the heads or supports, as shown in Fig. 2. The ends of each tube F abut against the rests or shoulders around the openings 0 and e of the plate-sections of the heads or supports, and the ends of the center tube F abut against the rest or shoulder around the central opening 0 of the platesection 0 and against the face of the platesection E adjacent to the central rim orfla'nge, so that when the tubes are in place and the heads or supports attached a close fit and a tight joint will be formed for each end of each tube or pipe and the plate-sections of the heads or supports, preventing the escape of the smoke and products of combustion. The space within the funnel-shaped section B and its plate-section G of the lower head or support forms a receiving-chamber, into which the smoke and products of combustion will pass from the connectingpipe attached to the collar rim or flange b, and the diverging formation of this chamber causes the heat, smoke, and products of combustion to spread outwardly and enter the outer series of heat flues or tubes F and the inner flue or tube for the smoke and products of combustion and heat to pass through the outer series of heat flues or tubes and enter the dischargechamber formed within the two sections of the upper head orsupport, to pass from such chamber into the Stovepipe and to the chimney or exit flue. The heat entering the central tube or flue cannot pass rapidly therethrough, owing to the small vent-hole in the plate-section of the upper head or support, which vent-opening, however, is suflicient to create an eXit by'which the heat in the flue or tube will be prevented from becoming dead or non-acting heat, and inasmuch as if the central flue or tube were open at the top the result would be a strong suction through this flue which would deprive the series of outer flues or tubes from receiving heat thereinto it will be seen that by, in effect, closing the top of the central flue or tube against rapid passage of the heat therethrough the heat will be diverted and pass into the outer flues or tubes, imparting a higher degree of heat to such flues or tubes than would be the case with a direct central flue or tube open to the full extent at its upper end. The closing of the central flue or tube against the free passage therethrough of the heat adds greatly to the heat-imparting nature of the radiator or heater, giving an increased effect, as the entire series of outer flues will receive and impart heat, and the center flue, owing to the circulation of the heat therein, will radiate heat therefrom, which also adds to the heating effect of the radiator or heater in acting on the air passing through the shell or cas ing from the top to the bottom. The radiator or heater, as shown, is attached to the shell or casing and held in place by outwardly-extending lugs f on the sections B and D of the heads or supports, each lug having a turned end with slot therein for the reception of the stem of a bolt f, passing through the wall of the shell or casing; but other means than bolts and other devices than lugs could be employed for securing the radiator or heater as a whole within the shell or casing. The heads or supports when the heat flues or tubes are in place are connected together by tie-rods Gone on each side and opposite each other in the construction showneach tie-rod having at one end ahead and at the other end a nut, by means of which the two heads can be drawn toward each other to hold the heat flues or tubes firmly in position and make the radiator or heater a unit as a whole.

In operation the cold air will be drawn from below into the lower end of the shell or casing with the'full capacity of the shell or casing for the ad mission of the air. The air thus drawn in at the bottom will pass upwardly through the space between the lower head or support and the wall of the shell or casing and enter and be drawn through the shell or casing and between the heat-tines of the radiator or heater to pass out in the space between the upper head or support and the wall of the shell or casing and be discharged at the full-open end of the shell or casing, thus having a full and free admission into the lower end of the shell or casing and a free and full discharge at the upper end of the shell or casing, passing in contact with the heating flues or tubes as it flows upwardly through the shell or casing. The heads or supports by their fluted formation give additional space for the passage ofthe air, and at the same time the fluted construction of the head or support enables a series of outer flues or tubes and a center flue or tube for heat to be arranged, with a clear space between the several tubes or lines for the passage of the air between and in contact with the flues or tubes. The heat fines or tubes owing to their arrangement and the transmission of heat thereto and therefrom gives an increased heating-surface for action on the air passing from the bottom to the top of the shell or casing, with the result of an increased heating effect for the air when discharged into the room, making the operation of the drum in drawing in cold air and discharging warm airmore effective and rapid in use.

The construction of the drum as a whole has, among some of the advantages, that of providinga distributing-chamherin the lower head or support, by which the heat and products of combustion will be caused to have an outward spread to enter all of the heat flues or tubes. The air'is drawn into the interior of the shell or casing with a full opening at the lower end and is discharged therefrom with a full opening at the upper end. The air drawn into and passed through the shell or casing will be subjected to the heating= surface of the entire series of heat flues or tubes, resulting in the production of a high degree of heat for the air when discharged at the upper end of the shell or casing. The drawing in of the air and discharging of the air with a full opening at the top and bottom gives increased efficiency in heating the air as it passes through the drum for the heated air to add its heating effects to the heat of the stove and drum or to the heat from the drum alone, and the spreading of-the heat and products of combustion, with the shutting off of the draft through the center tube or' flue of the radiator or heater, gives increased heating eifects for the drum.

It is preferred to have the drum open at the lower end; but for some places, and especially where it is desirable to have the drum in an elevated plane, the lower end of the drum might be so far above the floor as to prevent the full heating effects of the drum on the air adjacent to the floor. The drum can be used in an elevated position, if so desired, by extending a suction-pipe to the floor,- and for this purpose a detachable head H is employed, such head having a peripheral flange h to fit around the lower end of the drum and having one or more depending pipes I, one being shown, to extend down close to the floor, if so desired, and with a head the pipe J for the smoke and products of combustion can pass through an opening therefor in the head. The cold air will be drawn from the floor into the lower end of the depending pipe or pipes and pass into the interior of the drum above the head or plate -,H and, flowing through the drum in contact wit-h the radiator or heater, will be discharged at the upper end of the'shell or casing the same as in the case of ashell or casing having a full open end at the bottom.

What I regard as new, and desire to secure by Letters Patent, is-

1. In a heating-drum, the combination of an outer shell or casing open at both its top and bottom, a head or support within the shell or casing adjacent to its lower end and a head or support within the shell or casing adjacent to its upper end, each head or support of a less diameter than the interior diameter of the shell or casing leaving a space between each head or support and the shell or casing for air to enter freely at the open lower end into and draw freely through the shell or casing aroundthe periphery of the lower head or support and discharge freely at the open upper end around the periphery of the upper head or support, each head or support consisting of a funnel-shaped bodysection having a fluted diverging wall and a plate end section having a fluted periphery corresponding to the fluted wall of the funnel shaped body-section and entered into a fluted circumferential rim around the funnel-shaped body-section, and a series of tubes entered into the plate end section of each head or support and forming heat-condncting tubes or fines for heating the air in its passage through the shell or casing from its open lower end to its open upper end, substantially as described.

2. In a heating-drum, the combination of an outer shell or casing open at both its top and bottom, a head or support within the shell or casing adjacent to its lower end, a head or support within the shell or casing adjacent to its upper end, each head or support of a less diameter than the interior diameter of the shell or casing leaving a space between each head or support and the shell or casing for air to enter freely at the open lower end into and draw freely through the shell or casing around the periphery of the lower head or support and discharge freely at the open upper end around the periphery of the upper head or support, each head or support consisting of a funnel-shaped body-section and a plate end section entered into a circumferential rim around the funnel-shaped bodysection, each plate end section having a series of openings adjacent to its periphery and the plate end section of the lower head or support having a central opening and the plate end section of the upper head or support having a vent-opening, a series of outer tubes between the two heads or supports, each outer tube encircling an outer opening of the plate end section, and a center tube encir cling the center opening of the lower plate end section and the vent-hole of the upper plate end section of the head or support, the series of tubes thus arranged forming the heat-conducting tubes or fines for heating the air passed through the shell or casing from its open lower end to its open upper end,

substantially as described.

3. In a heating-drum, the combination of an outer shell or casing open at both its top and bottom, a head or support within the shell or casing adjacent to its lower end, a head or support within the shell or casing adjacent to its upper end, each head or support of a less diameter than the interior diameter of the shell or casing leavinga space between each head or support and the shell or casing for air to enter freely at the open lower end into and draw freely through the shell or casing around the periphery of the lower head or support and discharge freely at the open upper end around the periphery of the upper head or support, each head or support consisting of a funnel-shaped body-section, having a fluted diverging wall and a plate end section having a fluted periphery corresponding to the fluted wall of the funnel-shaped body-section and entered into a fluted circumferential rim around the funnel-shaped body-section and each plate-section having a series of openings adjacent to its periphery with a circular flange or rim around each opening on the inner face of each plate-section and the plate end section of the lower head or support having a central opening with a circular flange or rim around the opening on the inner face of the plate-section and the plate end section of the upper head or support having a vent-opening at the center and a circular flange or rim around the ventopening on the inner face of the plate-section, a series of outer tubes between the two heads or supports with their ends entered into the circular flanges or rims of the plate end sections for the end of each outer tube to encircle an outer opening of each plate end section and a center tube entered at its lower end into the central rim or flange of the lower plate end section to encircle the center opening thereof and having its upper end entered into the circular flange or rim of the upper plate end section the series of tubes thus arranged forming the heat-conducting tubes or fines for heating the air in its passage through the shell or casing from its open lower end to its open upperend,substantially as described.

4. In a heating-drum, the combination of an outer shell or casing open at both top and bottom, a lower head or support and an upper head or support within the shell or casing, each head or support of a less diameter than the interior diameter of the shell or casing leaving a space between each head or support and the shell or casing for the passage of air into and through the shell or casing around the peripheries of the heads or supports each head or support consisting of a funnel-shaped section and a plate-section entered into the funnel-shaped section, a series of tubes entered at their ends into the platesections of each head or support, a detachable plate for the open bottom of the outer shell or casing, and a suction pipe or pipes carried by the detachable head plate for drawing and passing air through the shell or casing from its lower end to its upper end and heating the air in its passage for discharge of the air at the open upper end of the shell or casing, substantially as described.

5. In a heating-drum, the combination of an outer shell or casing open at both its top and bottom, a head or support at the lower end of and within the body of the shell or casing, a head or support at the upper end of and within the body of the shell or casing, each head or support of a less diameter than the interior diameter of the shell or casing, each head or support consisting of a body having a circumferential rim and an end plate entered and fitted closely into the rim of the body and the body converging from the end plate, each end plate havinga series of openings adjacent to its periphery with the openings of the two plates in line and an annular rim or flange around each opening on the inner face of theend plate, and a series of tubes between the two heads or sup ports, one tube for two alining openings having its ends encircled by the rims or flanges of the openings with eachend abutting against the face of the plate making a close union for the tubes and the end plates, for the series of tubes thus arranged to form the heatconducting flues for heating air in its passage through the shell or casing from its open lower end to its open upper end, substantially as described.

6. In a heating-drum, the combination of an outer shell or casing open at both its top and bottom, a head or support at the lower .end of and within the body of the shell or casing, a head or support at the upper end of and within the body of the shell or casin g, each head or support of aless diameter than the interior diameter of the shellorcasing,each head or support consisting of a body having a circumferential rim and an end plate entered and fitted closely into the rim of the body, the body converging from the end plate and each end plate having a series of openings adjacent to its periphery with the openings of the two plates in line and an annular rim or flange around each opening on the inner face of the plate leaving a shoulder or ledge around the opening in line with the plate, and a series of outer tubes between the two heads or supports, one tube for two alining openings and having its ends encircled by the rims or flanges of the openings with each end abutting against the shoulder or ledge of the opening, uniting the tubes and the plates with a close tight joint for the ends of the tubes, the series of tubes thus arranged forming the heat-conducting tubes or flues for heating the air in its passage through the shell or casing from its open lower end to its open upper end, substantially as described.

7. In a heating-drum, the combination of an outer shell or casing open at both its top and bottom, a head or support at the lower end of and within the body of the shell or casing, a head or support at the upper end of and within the body of the shell or casing, each head or support of a less diameter than the interior diameter of the shell or casing, the lower end plate having a central opening surrounded by an annular rim or flange on the inner face of the plate, and the upper end plate having a vent-opening surrounded by an annular rim or flange on the inner face of the plate, and a center tube encirclingthe center opening of the lower end plate and having its ends entered into the rims or flanges at the center of the two plates for the center tube to form a heat receiver and retainer, substantially as described.

8. In a heating-drum, the combination of an outer shell or casing open at both, its top and bottom, a head or support at the lower end of and within the body of the shell or casing, a head or support at the upper end of and within the body of the shell or casing, each head or support of a less diameter than the interior diameter of the shell or casing, each head or support consisting of a body having a circumferential rim and an end plate entered and fitted closely into the rim of the body, the body converging from the end plate and each end plate having a series of openings adjacent to its periphery with the openings of the two plates in line, an annular rim or flange around each opening on the inner face of the end plate leaving a shoulder or ledge around the opening in line with the plate, a series of tubes between the two heads or supports one tube for two alining openings and having its end encircled by the rims or flanges of the openings witheach end abutting against the shoulder or ledge of the opening, a central opening in the lower end plate with an annular rim or flange around the opening on the inner face of the end plate leaving a shoulder or ledge around the opening in line with the plate, a vent-opening at the center of the upper end plate with an annular rim or flange on the under face of the plate around the vent-opening in line with the rim or flange of the lower plate, and a center tube having its ends'entered into the center rims or flanges of the end plates and abutting at the ends against the face of the top plate and against the shoulder or ledge of the lower plate, the series of outer tubes forming heat-fines and the center tube forming a heat receiver and retainer for heating the air in its passage through the shell or casing from its open lower end to its open upper end, substantially as described.

9. In a heating-drum, the combination of an outer shell or casing open at both its top and bottom, a head or support at the lower end of and within the shell or casing, ahead or support at the upper end of and within the shell or casing, each head or support of a less diameter than the interior diameter of the shell or casing, each head or support having the heads or supports and the attaching lugs brackets, a fastening, bolt or rivet for each and bolts within the interior of the shell or lug or bracket passing through the Wall of the casing, substantially as described.

outer shell or casing and suspending the I ALLEN C. SELLECK.

extending out therefrom a series of lugs or 5 heads or supports axially within the shell or Witnesses:

casing and a series of tubes between the THOMAS A. BANNING,

heads or supports sustained in position by l OSCAR \V. BOND. 

